# STC SE09538SC

- Type: Supplemental type certificate
- Status: Current, Issued
- Holder: Covington Aircraft Engines, Inc., United States
- Description: Installation of American Bosch magneto and ignition harness, model SB9RU-3 magneto and P/N 165373 harness, or SB9RC-3 magneto and PN 165374 harness.
- Status date: March 30, 1999
- Product: Engine
- Certification basis: Part 21
- Data sheets: [TCDS 5E-2](https://openairdocs.org/tcds/5E-2), [TCDS E-129](https://openairdocs.org/tcds/E-129), [TCDS E-142](https://openairdocs.org/tcds/E-142)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/62C443C0A15C8F4085256CC2005A7416.0001
- DRS record last changed: December 6, 2025
- Page: https://openairdocs.org/stc/SE09538SC

## ADs that name it (0)

None.

## Approved models (9)

- Pratt & Whitney Division R-1340 Series ([TCDS 5E-2](https://openairdocs.org/tcds/5E-2))
- Pratt & Whitney Division R-1340-59 ([TCDS E-142](https://openairdocs.org/tcds/E-142))
- Pratt & Whitney Division Wasp R-1340-61 ([TCDS E-129](https://openairdocs.org/tcds/E-129))
- Pratt & Whitney Division Wasp S1H1 ([TCDS E-129](https://openairdocs.org/tcds/E-129))
- Pratt & Whitney Division Wasp S1H1-G ([TCDS E-129](https://openairdocs.org/tcds/E-129))
- Pratt & Whitney Division Wasp S1H2 ([TCDS E-129](https://openairdocs.org/tcds/E-129))
- Pratt & Whitney Division Wasp S1H4 ([TCDS E-129](https://openairdocs.org/tcds/E-129))
- Pratt & Whitney Division Wasp S3H1-G ([TCDS E-142](https://openairdocs.org/tcds/E-142))
- Pratt & Whitney Division Wasp S3H2 ([TCDS E-129](https://openairdocs.org/tcds/E-129))

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From OpenAirDocs.org, an independent open copy of FAA and NTSB data. Only the Federal Register edition on govinfo.gov is the official legal text of an AD.